After creating computed column for dataset myeclipse is changing name of this column. Every time I change sql query for dataset myeclipse changes name of computed column for this data set. For example myeclipse adds something like this: '_1' to the end of the name. Is this problem solved??

mateusz,

What version of MyEclipse are you using? If you aren't using MyEclipse 8, please upgrade as that includes a newer version of our reporting framework.
If the problem still persists, could you please send us a screenshot of the problematic query and columns that result? I'll send it on to our reporting team and have them investigate. If you cannot post a screenshot here, can you please send an email to support@myeclipseide.com?